Popular in General Chemistry 2
verified elite notetaker
Popular in Chemistry
This 1 page Class Notes was uploaded by Cassidy Zirko on Sunday February 21, 2016. The Class Notes belongs to Chem 143 at University of Montana taught by Dr. Cracolice in Spring 2016. Since its upload, it has received 13 views. For similar materials see General Chemistry 2 in Chemistry at University of Montana.
Reviews for Week 50
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 02/21/16
Chapter 50: How are Equilibrium Concentrations Determined? 2/20/16 50.1 How are Equilibrium Concentrations Determined? How can the Direction of a Reaction be Predicted? o Reaction quotient Q, same as the equilibrium constant but concentrations in Q expression not necessarily at equilibrium o Q doesn’t have a fixed value o System at equilibrium Q=K but otherwise Q doesn’t equal K o Only forward reaction can occur o Forward reaction rate has to be greater than reverse reaction rate o Numerator will increase denominator will decrease o Q will become greater than zero but starts as a small number but less than K o Q less than K rate of forward reaction is greater than the rate of reverse o Opposite changes occur until equilibrium is reached o No matter Q, reaction will occur until equilibrium is reached o Q<K reaction proceeds to right, forward direction o Q>K reaction proceeds to left reverse direction o Q=K system at equilibrium How are Equilibrium Concentrations Calculate? o Uses ICE tables o Initially C or E wont be given to you o Substitute C with x and stoichiometric coefficients o Then E is IC with C being an X value o Find quadratic equation and then use quadratic formula to find X o Substitute x into the ICE table o Position of equilibrium is reached regardless of when the reaction starts
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'